Home / 317,659,431.23-438,380,659.73-176,536,598.69

Finding the Fourth Proportional to 317,659,431.23, 438,380,659.73 and 176,536,598.69

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Solution

The fourth proportional to 317,659,431.23, 438,380,659.73 and 176,536,598.69 is: 243,626,421.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,659,431.23 : 438,380,659.73 = 176,536,598.69 : x
  2. Step 2: Convert to fraction form
    317,659,431.23/438,380,659.73 = 176,536,598.69/x
  3. Step 3: Cross multiply
    317,659,431.23x = 438,380,659.73 × 176,536,598.69
  4. Step 4: Simplify right side
    317,659,431.23x = 77,390,230,601,749,744
  5. Step 5: Solve for x
    x = 77,390,230,601,749,744/317,659,431.23
  6. Step 6: Final answer
    x = 243,626,421.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.